Welcome to Rihm Kenworth Founded in 1932 under the name Rihm Motor Company, Inc., Rihm Kenworth is the 2nd oldest continually operated Kenworth dealer in the world. Rihm Family Companies, Inc. (RFC) is a 4th generation family-owned and operated business. RFC employs nearly 400 people in Minnesota, Wisconsin and South Dakota, and includes Rihm Kenworth; RMC Truck Parts, a genuine and aftermarket parts sales company; Rihm Leasing, a truck lease, rental and maintenance company; and Rihm Global Sales, which handles international truck and parts sales and service training. RFC is a growth-oriented company, focused on doing the right thing always, while providing exceptional service. Thank you for visiting our site and please let us know how we can help you.